A Poll on your weight and balance

All sailplane owners,
Please reply with the weight on your tail wheel from your weight and
balance sheet. I will calculate the average after a few days and post
it and the range. Reply on this list or directly to me, either way is
fine.
Thanks.

Ventus C (all up)
Nose wheel: 772 lbs
tail wheel 36.3 lbs
C/G 4.5" aft of datum (76% aft)

On Wednesday, December 5, 2012 11:49:48 AM UTC-6, soartech wrote:
All sailplane owners,

Please reply with the weight on your tail wheel from your weight and

balance sheet. I will calculate the average after a few days and post

it and the range. Reply on this list or directly to me, either way is

fine.

Thanks.

It would be nice to know what you try to accomplish. Also there are so many variables going into the tail wheel weight. A Genesis probably will be much different from a Duo Discus. You should also specify if this weight is for the empty glider or with the pilot and chute.

Looking from a medical viewpoint?
Going by just tail weight, perhaps Martin Heide has friends who are chiropractors.
Jim

On Wednesday, December 5, 2012 10:43:36 AM UTC-8, wrote:

It would be nice to know what you try to accomplish.

Empty:

Std Cirrus - 65 lbs on tail
Cherokee II - ~25 lbs on tail
NG-1 - ~5 lbs on tail

On Wednesday, December 5, 2012 11:55:17 AM UTC-7, JS wrote:

Going by just tail weight, perhaps Martin Heide has friends who are chiropractors.


I suspect Martin just inherited this design feature. My 28 runs about 60lb on the tail, ballasted and with me in the cockpit. I have to lift a lot more than that to put the tail dolly on. I have no record of the tail weight for that condition but it calculates to approx 90lb.

Attempting to answer the OP's question - In specified weighing attitude, no ballast and no pilot, tail 67lb. Same with pilot and chute in cockpit, tail 37.5lb.

As others have pointed out, the conditions for measuring tail weight have a huge influence on the result. No data will be of any value unless the conditions are specified.

Andy (GY)

On Dec 6, 6:19*am, Andy wrote:
On Wednesday, December 5, 2012 11:55:17 AM UTC-7, JS wrote:
Going by just tail weight, perhaps Martin Heide has friends who are chiropractors.

I suspect Martin just inherited this design feature. *My 28 runs about 60lb on the tail, ballasted and with me in the cockpit. *I have to lift a lot more than that to put the tail dolly on. *I have no record of the tail weight for that condition but it calculates to approx 90lb.

Attempting to answer the OP's question *- In specified weighing attitude, no ballast and no pilot, *tail 67lb. *Same with pilot and chute in cockpit, tail 37.5lb.

As others have pointed out, the conditions for measuring tail weight have a huge influence on the result. *No data will be of any value unless the conditions are specified.

Andy (GY)

Janus C - 64 lbs
Speed Astir II - 90 lbs

ASW-19B = 70 lbs
LS8-18 = 67 lbs

Both values without pilot or chute, and both done using manufacturer's specified tail position.

-John

On Wednesday, December 5, 2012 10:49:48 AM UTC-7, soartech wrote:
All sailplane owners,

Please reply with the weight on your tail wheel from your weight and

balance sheet. I will calculate the average after a few days and post

it and the range. Reply on this list or directly to me, either way is

fine.

Thanks.

LAK12 empty
34.5kg 76lbs

Kestrel 19
104 lbs on the tailwheel, empty

Can you say, "Oh, my aching back!"?